Hello,

In VisualBasic application, Internet Explorer browser control implementation was done as below.  Is there any sample for WebBrowser control to post data similar to below implementation?  Thanks.

Dim strPostData As String

strPostData = "uid=" & strUserId & "&pwd=" & strPwd 
PackBytes aByte(), strPostData
vPost = aByte
StartingAddress = "https://www.test.com/testpage.asp"

brwWebBrowser.Navigate StartingAddress, vFlags, vTarget, vPost, vHeaders

Please refer below link for .Net reference.

WebBrowser.Navigate Method (System.Windows.Forms) | Microsoft Docs